In order to deal with the budding growth, "India needs to modernize its farm and food delivery systems" and make improvements to its transportation systems, according to CNN Money.

China has a population of 1.38 billion, compared to India's 1.31 billion, but India is expected to reach 1.4 billion by 2022; 1.5 billion by 2030; and 1.7 billion by 2050.

The world's population is predicted to hit 9.7 billion by 2050 and 11.2 billion by 2100. It’s currently 7.3 billion, according to the UN data. In 35 years, Nigeria is predicted to have more people than the United States.

Per CNN Money, the top 10 most populous nations by 2030 are predicted, as follows:

India, Nigeria, Pakistan, Democratic Republic of the Congo, Ethiopia, United Republic of Tanzania, United States of America, Indonesia and Uganda will account for half of the growth over the next 35 years.

High fertility rates in some of the poorest nations will pose a significant challenge to "eradicate poverty and inequality, to combat hunger and malnutrition," John Wilmoth, director of the population division in the UN's department of economic and social affairs, told the Daily Mail.

Conversely, The New York Times reported that declining fertility rates in 48 countries, mostly in eastern Europe, are predicted to result in marked population declines by 2050.

Bosnia and Herzegovina, Bulgaria, Croatia, Hungary, Japan, Latvia, Lithuania, Moldova, Romania, Serbia, and Ukraine are expected to see more than a 15 percent drop within the next 35 years, according to the Times.

A jump in the population of people over age 60 will also be a factor, with that demographic predicted to more than double by 2050 and more than triple by 2100. It’s estimated that 34 percent of Europeans will be above age 60 by 2050.

The United Nations predicts India will surpass China as the most populated country in the world in the next seven years, the Daily Mail reports, citing data from the United Nations' World Population Prospects.